"Simple, useful, and good looking! Love it!" - D. Yang

MetroTimer is the most accurate metronome app on the App Store. It provides highly accurate audio and visual feedback, and easy to use timer to track your practice sessions.

MetroTimer is also one of the most beautifully designed metronome apps - it was recently featured on Behance!

MetroTimer has been measured to be more accurate than any other metronome app for iOS. Most app store metronomes are derived from Apple sample code included with the iOS SDK (Software Development Kit). And regretfully, this code fails to account for all the factors that can cause small inaccuracies to build up over time. MetroTimer, created by a software company that specializes in clock time measurement and regulation, is guaranteed to meet laboratory standards for accurate timekeeping.

Metronome Highlights:

● Tested with clock time regulation equipment
● Practice timer to track your practice sessions
● Visual indication allows you to "see" the beat
● iPhone LED flash visual feedback support
● 8 metronome sounds including human voice
● Background mode, blends with other audio
● Tap tempo functionality

Metronome Pro (in-app purchase) adds these features:

● Custom time signatures
● Accents and subdivisions
● Interactive beat editor
● Presets list

What’s New

Version 3.3.2

Thanks for helping us improve MetroTimer! Remember to rate this app on the app store, so we can make it even better!

● Fixed accuracy issue with iPhone 6s

Ratings and Reviews

4.6 out of 5
2.9K Ratings
2.9K Ratings
Sncwilly ,


I would happily give it 5 stars but ... it only works on 2 out 3 devices where I downloaded it. On the third device, an iPhone 6, it stops and locks up after 2 seconds. We’ve rei d downloading the app again, restarted the phone. Nothing helps. Works just fine on iPad mini 2 and iPhone 7. Any suggestions?

TBviolin ,

Just shuts off

About every other time I use this it still shuts off at random times. Guess I better find one that works.

Can’t you fix this? Still quits randomly

12-13-18. Still shuts off about every other time I use it. Are you going to fix it?

Frank Rightous ,


It’s a simple perfect app easy learning especially with any instrument practice. No complaints! Just music!


21.2 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2015 ONYX Apps
In-App Purchases
  1. MetroTimer Pro $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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